More than $700 worth of valuables were stolen from a stroller parked outside a day-care center in tony Park Slope, cops said yesterday.

An absent-minded mom left her personal items outside in the stroller on a front patio around 6 p.m., Dec. 13, as she picked up her child from day care on Seventh Street, between Fifth and Sixth avenues, police said.

The thief made off with an iPhone 4S, worth $350 dollars, a full tote bag, a $250 wallet, keys, identification and credit cards, cops said.

Someone tried to use one of the credit cards for more than $100 worth of food at a pizzeria but the card was declined, a worker at the day care said.

The 30-year-old victim, who asked her name not be used, called her phone, and a man who answered hung up. No arrests have been made.

She said she regularly leaves the pricy Bugaboo when she enters the daycare.

“Yes, I normally do because I’m in and out and parents are going and coming as well. It is pretty safe here,” the mom told the Post.

The day-care owner said a lot of parents leave their strollers unattended.

“There’s another stroller they attempted to steal today,” the owner, Rita, said. “They saw a bag, took the bag, but the bag was empty so they threw it out.”